VANCOUVER, Dec. 4, 2012 /PRNewswire/ - Callinex Mines (TSX.V-CNX) (OTCQX-CLLXF)
has begun drilling on its Sneath Lake claims in the Snow Lake region of
Northern Manitoba, and is currently mobilizing a second drill to its
Moak Lake Project in Thompson, Manitoba.

Sneath Lake

The Sneath Lake Project is a 1,400 hectare claim block is located 6 kms
away from HudBay Minerals Inc.'s Lalor Lake Mine, which began
production in 2012. Three deep targets have been defined by Callinex,
using a high energy Deep Penetrating Electro Magnetic Survey (DPEM)
which is able to define anomalies at depths greater than 500 metres.
HudBay Minerals Inc. ("HudBay") has reported that its Lalor Lake Mine
contains mineral reserves of more than 14 million tonnes of 0.6%
Copper, 6.96% Zinc, 1.86g/t Gold, and 23.55g/t Ag (reference is made to
HudBay's press release, dated April 02,2012 entitled "Hudbay Announces
Increases in Metals Reserves and Resources"). .The mineralization at
Lalor was originally encountered at a depth greater than 500 metres,
utilizing the DPEM system (reference is made to HudBay's press release
dated March 20,2007 entitled "HudBay's First Lalor Lake Drill Hole
Intersects Zinc"). Although much drilling has been conducted at Sneath
Lake, no drilling is known to have extended below 500 metres in depth,
and Callinex's Deep Pulse EM survey is the first known to have been
used on the claims.

Moak Lake

The company is also in receipt of drilling permits for their Moak Lake
program in the Thompson Region of Manitoba. The 425 hectare Moak Lake
claim is located 30 kms north of the town of Thompson and 75 kms east
of Nelson House, Mb. The area has been explored for nickel since the
1950s with varying degrees of success. An examination of public
assessment records filed with the Manitoba government has shown that
geological formations prospective for nickel sulphides exist at the
Moak Lake claims. Through interpretation of an airborne electromagnetic
survey (conducted by the company), Callinex' exploration team has
defined four drill targets, which will be tested as part of this year's
program. The company will also perform geophysical surveys, both on
surface and borehole based, to further define targets.

Changes to Board of Directors

The Company is pleased to announce that President and Chief of
Operations J.J. O'Donnell will take on the role of Chief Executive
Officer from Anna Stylianides at the beginning of 2013. Management and
the board of directors is confident that Mr. O'Donnell's experience in
the Flin Flon / Snow Lake VMS belt, and familiarity with all aspects of
the mining business make him the very best choice to lead Callinex
going forward.

Additionally, Frank Dembinsky, Brian Irwin and Anna Stylianides have
left the board of directors. The company thanks them for their years of
loyal service and wishes them well.

On behalf of the Board of Directors,

"J.J. O'Donnell"

J.J. O'Donnell
President, COO

All of Callinex's exploration programs are conducted under the direction
of J.J. O'Donnell, P.Geo, a qualified person as defined by national
instrument 43-101, who has reviewed and approved the contents of this
release. Neither the TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of this
release Some statements in this news release contain forward-looking
information. These statements include, but are not limited to,
statements with respect to future expenditures. These statements
address future events and conditions and, as such, involve known and
unknown risks, uncertainties and other factors which may cause the
actual results, performance or achievements to be materially different
from any future results, performance or achievements expressed or
implied by the statements. Such factors include, among others, the
ability to complete contemplated work programs and the timing and
amount of expenditures. Callinex does not assume the obligation to
update any forward-looking statement.